/*!	 synfig/rendering/common/task/taskpixelprocessor.cpp
**	 TaskPixelProcessor
**
**	......... ... 2016 Ivan Mahonin
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#ifndef _WIN32
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#endif

#include "taskpixelprocessor.h"

#endif

using namespace synfig;
using namespace rendering;

Rect
TaskPixelProcessor::calc_bounds() const
{
    return is_transparent() ? Rect::zero()
           : is_affects_transparent() ? Rect::infinite()
           : sub_task() ? sub_task()->get_bounds()
           : Rect::zero();
}

VectorInt
TaskPixelProcessor::get_offset() const
{
    if (!sub_task()) {
        return VectorInt::zero();
    }

    Vector offset = (sub_task()->get_source_rect_lt() - get_source_rect_lt()).multiply_coords(get_pixels_per_unit());
    return VectorInt((int)round(offset[0]), (int)round(offset[1])) - sub_task()->get_target_offset();
}